Alcupol C-5710 Polyether polyol Repsol PU - Polyols >> Polyether SEALANT ADHESIVE Alcupol C-5710 is a non-reactive trifunctional polyether with a molecular weight of 290 without ethylene oxide in its composition. It is recommended for the manufacture of solid polyurethane elastomers, filled polyurethane elastomers and sealants. Non-reactive trifunctional polyether without ethylene oxide. Recommended for the manufacture of solid polyurethane elastomers, filled polyurethane elastomers and sealants.